In a class of Probability and Statistics, 57.8% of students are freshmen. A total of 73% of freshmen haspassed the course of Calculus 1 last semester, while a total of 78.1% of seniors has passed the course. Theteacher chose a student randomly among those who passed Calculus 1 last semester, finding the probabilitythat this student is a freshman.Answer:

Answered: Image /qna-images/answer/ba2bdad5-67b0-4896-837b-3ee6db712e92.jpg

Answered: In a class of Probability and…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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A car dealership sells two types of cars: sedans and SUVs. The dealership conducted a survey and found that out of 200 customers, 120 purchased sedans, 80 purchased SUVs, and 40 purchased both types of cars. Calculate the probability that a randomly selected customer purchased either a sedan or an SUV.
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Airlines report that 45% of its flights are on time. In a random sample of 80 flights, what is the probability that exactly 42 will be on time?
About 45% of students participate in a community volunteer program outside of school. If 50 students are selected at random, find the probability that at most 25 of them participate in a community volunteer program outside of school.
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31% of all college students major in STEM (Science, Technology, Engineering, and Math). If 44 college students are randomly selected, find the probability that exactly 11 of them major in STEM.
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At The Fencing Center, 60% of the fencers use the foil as their main weapon. We randomly survey 28 fencers at The Fencing Center. We are interested in the numbers that do not use the foil as their main weapon. Find the probability that eleven do not use the foil as their main weapon.
Of the patients at a cardiac rehabilitation centre, 36% lead a sedentary lifestyle and have had a heart attack. If 78% of the patients lead a sedentary lifestyle, find the probability that a randomly selected patient has had a heart attack, given that he or she leads a sedentary lifestyle. Answer:
Four hundred fifty of the six thousand students at Ocean State College like math, three thousand five-hundred like English, and three hundred like both. What is the probability that one student, chosen at random, likes math or English?
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